function replace_title(title){
    if(document.title){
        var tmp_str = document.title.split(' - ')[0];
    } else {
        var tmp_str = '';
    }
    document.title = tmp_str+' - '+title;
}

function replace_by_id(id, value){
    if (value) {
        document.getElementById(id).innerHTML = value;
    }else{
        document.getElementById(id).innerHTML = '';
    }
}
replace_by_id('domain_id', '36578.com');